Assessing the Repeatability of Multi-Frequency Multi-Layer Brain Network Topologies Across Alternative Researcher's Choice Paths.

IF 2.7 4区 医学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
Neuroinformatics Pub Date : 2023-01-01 Epub Date: 2022-11-14 DOI:10.1007/s12021-022-09610-6
Stavros I Dimitriadis
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Abstract

There is a growing interest in the neuroscience community on the advantages of multilayer functional brain networks. Researchers usually treated different frequencies separately at distinct functional brain networks. However, there is strong evidence that these networks share complementary information while their interdependencies could reveal novel findings. For this purpose, neuroscientists adopt multilayer networks, which can be described mathematically as an extension of trivial single-layer networks. Multilayer networks have become popular in neuroscience due to their advantage to integrate different sources of information. Here, Ι will focus on the multi-frequency multilayer functional connectivity analysis on resting-state fMRI (rs-fMRI) recordings. However, constructing a multilayer network depends on selecting multiple pre-processing steps that can affect the final network topology. Here, I analyzed the rs-fMRI dataset from a single human performing scanning over a period of 18 months (84 scans in total), and the rs-fMRI dataset containing 25 subjects with 3 repeat scans. I focused on assessing the reproducibility of multi-frequency multilayer topologies exploring the effect of two filtering methods for extracting frequencies from BOLD activity, three connectivity estimators, with or without a topological filtering scheme, and two spatial scales. Finally, I untangled specific combinations of researchers' choices that yield consistently brain networks with repeatable topologies, giving me the chance to recommend best practices over consistent topologies.

Abstract Image

评估多频多层脑网络拓扑结构在不同研究人员选择路径中的可重复性。
神经科学界对多层大脑功能网络的优势越来越感兴趣。研究人员通常在不同的大脑功能网络中分别处理不同的频率。然而,有强有力的证据表明,这些网络可以共享互补信息,而它们之间的相互依存关系则可以揭示新的发现。为此,神经科学家们采用了多层网络,它可以在数学上被描述为琐碎单层网络的扩展。由于多层网络具有整合不同信息源的优势,因此在神经科学领域很受欢迎。在这里,Ι 将重点讨论静息态 fMRI(rs-fMRI)记录的多频率多层功能连接分析。然而,构建多层网络取决于选择多个预处理步骤,这些步骤会影响最终的网络拓扑结构。在这里,我分析了一个人在18个月内进行扫描的rs-fMRI数据集(共84次扫描),以及包含25个受试者的3次重复扫描的rs-fMRI数据集。我重点评估了多频率多层拓扑结构的可重复性,探索了两种从 BOLD 活动中提取频率的过滤方法、三种连通性估计器(有无拓扑过滤方案)和两种空间尺度的影响。最后,我解开了研究人员选择的特定组合,这些组合产生了具有可重复拓扑结构的一致的大脑网络,使我有机会就一致拓扑结构推荐最佳实践。
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来源期刊
Neuroinformatics
Neuroinformatics 医学-计算机:跨学科应用
CiteScore
6.00
自引率
6.70%
发文量
54
审稿时长
3 months
期刊介绍: Neuroinformatics publishes original articles and reviews with an emphasis on data structure and software tools related to analysis, modeling, integration, and sharing in all areas of neuroscience research. The editors particularly invite contributions on: (1) Theory and methodology, including discussions on ontologies, modeling approaches, database design, and meta-analyses; (2) Descriptions of developed databases and software tools, and of the methods for their distribution; (3) Relevant experimental results, such as reports accompanie by the release of massive data sets; (4) Computational simulations of models integrating and organizing complex data; and (5) Neuroengineering approaches, including hardware, robotics, and information theory studies.
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